| 100% | SOLIPSISM | 9 | Philosophical idea that only one's mind exists |
| 95% | SOLIPSISM | 9 | The philosophical idea that only one's mind exists |
| 54% | IMAGINARY | 9 | A thing or person that only exists in one's mind |
| 47% | IMAGINARY | 9 | Existing only in one's mind |
| 41% | THOUGHT | 7 | Idea that pops into one's head |
| 35% | HEI/IESMANTROPHIE/EIS | 21 | Awards that only one college athlete has ever won twice |
| 34% | LEMUR | 5 | Primate that exists only on the world's fifth-largest island |
| 34% | MOZAMBIQUE | 10 | Only one-word country that contains all five vowels |
| 34% | LAP | 3 | Spot that only exists when sitting down |
| 34% | ABSTRACT | 8 | Existing in the mind only |
| 34% | VIRTUAL | 7 | Existing in the mind only |
| 33% | AMI | 3 | "___ the only one who noticed that?": 2 wds. |
| 33% | MAINE | 5 | US state that only borders one other state |
| 33% | AMI | 3 | "___ the only one who saw that?!": 2 wds. |
| 33% | ROOK | 4 | One that can only go straight |
| 33% | THOSE | 5 | Not only that one |
| 33% | MAINE | 5 | Only U.S. state that borders one U.S. state |
| 33% | SOCANI | 6 | "You're not the only one with that ability" |
| 33% | CAIRO | 5 | Capital near the only one of the Seven Wonders of the Ancient World that's still largely intact |
| 32% | BUTLER | 6 | One of those who mind their manors |
| 32% | AMI | 3 | "___ the only one who thinks this is a bad idea?" |
| 32% | SMALLPOX | 8 | Only vaccine that existed before the 19th century |
| 32% | ARDEN | 5 | Who said "There's only one Elizabeth like me, and that's the queen" |
| 31% | SKELETON | 8 | The Blue ridge coral is the only one that forms a __ |
| 31% | IMAGINARY | 9 | Existing only in the mind |
| 31% | MEME | 4 | Idea that's spread virally |
| 31% | PRIVATETWEET | 12 | Post that can be accessed only by one's followers |
| 31% | CASH | 4 | Bills that one doesn't mind piling up |
| 30% | NON*TER | 7 | Idea that's dead on arrival |
| 30% | TEXTS | 5 | Communicates with only one's thumbs |